main.cpp

#include <cstdlib>

#include <iostream>

#include <string.h>

#include <windows.h>

#include <Winreg.h>

using namespace std;

bool getreg();

int main(int argc, char *argv[])

{

    getreg();

    system("PAUSE");

    return EXIT_SUCCESS;

}

bool getreg()

{

    HKEY    hKey        = HKEY_LOCAL_MACHINE;

    LPCTSTR subKey      = "HARDWARE\\DEVICEMAP\\SERIALCOMM";

    REGSAM  samDesired  = KEY_READ;

    HKEY    Result;

    DWORD   dwIndex     = 0;

    char    lpValueName[MAX_PATH];

    DWORD   lpcValueName =  MAX_PATH;

    BYTE    lpData[MAX_PATH];

    DWORD   lpcbData =  MAX_PATH;

    long ret = RegOpenKeyEx( hKey, subKey, 0, samDesired, &Result);

    if ( ret != ERROR_SUCCESS )

    {

        cout << "ERROR - Regestry konnte nicht geoeffnet werden" << endl;

        cout << ret << endl;

        return false;

    }

    cout << "Registry erfolgreich geoeffnet!" << endl << endl;;

    do

    {

      //lpcValueName =  MAX_PATH;

      //lpcbData =  MAX_PATH;

      ret = RegEnumValue( Result,

                          dwIndex++,

                          lpValueName,

                          &lpcValueName,

                          NULL,

                          NULL,

                          lpData,

                          &lpcbData);

      if (ret == ERROR_NO_MORE_ITEMS)

      {

        cout << " ";

        for (int i = 0; i < lpcValueName; i++)

                cout << lpValueName[i];

        cout << "  ";

        for ( int i = 0 ; i < lpcbData ; i++ )

            {

                cout << lpData[i];

            }

          cout << endl << endl;

      }

    }

    while (ret != ERROR_NO_MORE_ITEMS);

    if ( RegCloseKey ( Result ) != ERROR_SUCCESS )

        cout << "Regestry konnte nicht geschlossen werden!" << endl;

    else

        cout << "Regestry erfolgreich geschlossen!" << endl;

    return true;

}